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Old 03-03-2007, 05:34 AM   #2
szentej
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Join Date: Sep 2005
Location: Tn
Posts: 42
Rim size alone will not cause the speedometer to be different than actual speed. The outer diameter of the tire will be the determining factor. You can use the calculator at this site (paspeedo.com/calculator.htm) to determine what effect various sizes of wheel/tire combinations will have on the accuracy of your speedometer and odometer.
John
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